Registers a new TrackedDataHandler

[TropheusJ]

A new TrackedDataHandler is registered and used to track boat types here.

This is extremely unsafe and makes the mod prone to load-order dependent issues that are impossible to debug.

Instead, a plain field and manual syncing with a custom packet should be used.

[gniftygnome]

Out of curiosity, what load order issue have you discovered?

[haykam821]

There's a more technical explanation at FabricMC/fabric#3482.

[gniftygnome]

Ohh, all yours then. :)

[haykam821]

I believe Brandcraf06/Blockus#322 is also caused by this issue as that mod uses this library.

If necessary, I think we will be able to use the vanilla optional integer tracked data handler instead of a custom one. The only drawback would be needing to convert (and validate) data within the entity which is a slightly less neat split between logic and networking.